Showing uncertainty can be expressed in a variety of ways, such as shrugging, wavering, teetering, seesawing, hesitating, and yoyoing. Shrugging is a gesture of uncertainty or indifference, often accompanied by a lifting of the shoulders. Wavering is to be unsteady or uncertain in one's opinion or attitude. Teetering is to sway unsteadily from side to side. Seesawing is to move up and down like a SEESAW. Hesitating is to pause or hold back before acting or speaking. Finally, yoyoing is to move up and down repeatedly.